HERSCHEL FAR-INFRARED AND SUBMILLIMETER PHOTOMETRY FOR THE KINGFISH SAMPLE OF NEARBY GALAXIES

Journal Article · Fri Jan 20 00:00:00 EST 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/745/1/95· OSTI ID:22011936

Dale, D A ^[1]; Aniano, G; Draine, B T ^[2]; Engelbracht, C W; Hinz, J L; Montiel, E J ^[3]; Krause, O; Groves, B A ^[4]; Roussel, H ^[5]; Appleton, P N ^[6]; Armus, L; Beirao, P ^[7]; Bolatto, A D ^[8]; Brandl, B R ^[9]; Calzetti, D; Crocker, A F ^[10]; Croxall, K V ^[11]; Galametz, M ^[12]; Gordon, K D ^[13]; others, and

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1. Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071 (United States)
2. Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States)
3. Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States)
4. Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany)
5. Institut d'Astrophysique de Paris, UMR7095 CNRS, Universite Pierre and Marie Curie, 98 bis Boulevard Arago, 75014 Paris (France)
6. NASA Herschel Science Center, IPAC, California Institute of Technology, Pasadena, CA 91125 (United States)
7. Spitzer Science Center, California Institute of Technology, MC 314-6, Pasadena, CA 91125 (United States)
8. Department of Astronomy, University of Maryland, College Park, MD 20742 (United States)
9. Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden (Netherlands)
10. Department of Astronomy, University of Massachusetts, Amherst, MA 01003 (United States)
11. Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606 (United States)
12. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom)
13. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)

New far-infrared and submillimeter photometry from the Herschel Space Observatory is presented for 61 nearby galaxies from the Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel (KINGFISH) sample. The spatially integrated fluxes are largely consistent with expectations based on Spitzer far-infrared photometry and extrapolations to longer wavelengths using popular dust emission models. Dwarf irregular galaxies are notable exceptions, as already noted by other authors, as their 500 {mu}m emission shows evidence for a submillimeter excess. In addition, the fraction of dust heating attributed to intense radiation fields associated with photodissociation regions is found to be (21 {+-} 4)% larger when Herschel data are included in the analysis. Dust masses obtained from the dust emission models of Draine and Li are found to be on average nearly a factor of two higher than those based on single-temperature modified blackbodies, as single blackbody curves do not capture the full range of dust temperatures inherent to any galaxy. The discrepancy is largest for galaxies exhibiting the coolest far-infrared colors.

• OSTI ID: 22011936
• Journal Information: Astrophysical Journal, Vol. 745, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
DUSTS
EXTRAPOLATION
GALAXIES
INFRARED SURVEYS
PHOTOLYSIS
PHOTOMETRY